JPH01239236A - Deodoring device for bowl of flush toilet - Google Patents

Abstract

PURPOSE:To exhaust odor in a water closet without causing dispersion by furnishing a pipe, which is in communication with an outdoor exhaust pipe and moves vertically along an overflow pipe, in the upper part of a drainage port of a water supply tank, and by putting it in communication with a cleaning pipe except at the time of draining. CONSTITUTION:A cylinder 1 having an exhaust port 6 in communication with an exhaust pipe leading to outdoors is installed in the upper part of an overflow pipe 3 in a water supply tank. A pipe 2 is arranged above a drainage port 7 at the bottom of the tank, and the top of this pipe is inserted in the cylinder 1, and a swing stopper 10 is provided in the lower part so as to enable vertical motion along the overflow pipe 3. A flange shaped rubber plug 5 is installed at the bottom of the pipe 2 so as to be connectable with the abovementioned drainage port 7, and a chain 9 from a flushing lever 8 is fitted to the swing stopper 10. Thereby a cleaning pipe 4 is put in communication which exhaust pipe leading to outdoors through the pipe 2 except at the time of draining to allow it to function as a deodorizing duct.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to an odor removal method and apparatus for disposing of bad odors in flush toilets directly from the inside of the toilet bowl to the outdoors.

(Naka) Conventional technology In the conventional Toy V, odors are removed from a room called a toilet by installing a ventilation fan on the ceiling or wall, or by natural ventilation by opening a window.

f-M Problems that the invention aims to solve The odor emitted when defecating is removed by a ventilation fan, etc. However, during that time, the odor spreads inside the toilet, causing a bad odor or causing a smell on clothes. It may also contain an odor. In addition, since the entire air inside the toilet must be constantly exchanged, it is not suitable for installing a heating/cooling system. Especially during the cold winter, it poses a serious health problem for the sick and elderly.

The purpose of this invention is to remove bad odors inside the toilet bowl, prevent the odors from spreading inside the toilet, and also make it possible to use air conditioning equipment.

(Means for Solving the Problems) To explain the structure of the present invention, the water flow path that runs from the water supply tank drain port (7) of the flush toilet to the toilet bowl via the flush pipe (4) is reversed from the flush toilet water supply port to the toilet bowl. This is a method of inhaling odors and discharging them outdoors.A cylinder (1) is installed above an overflow pipe (3) inside the water tank with an exhaust port (6) on the side that connects to the exhaust pipe to the outdoors. The installation is fixed.The upper part of the pipe (2) associated with the drain port (7) at the bottom of the water tank is inserted into the fixed cylinder (1), and the outer surface of the inserted part of the pipe (2) and 7. Install the pipe (2) so that it is in close contact with the inner surface of the cylinder (1) and slide up and down, and attach a brim-shaped rubber plug (5) to the bottom of the pipe (2) to open the drain port (7). Fix the pipe (2) side above the rubber stopper (5) at the bottom of the pipe (2), and attach the other side to the overflow pipe (3).
) with a steady rest that also guides the vertical movement of the ring-shaped pipe (2).
Link chain (9) to 8). This device connects an exhaust pipe leading to the outdoors to the exhaust port (6) of the cylinder (1) and removes odors through an exhaust fan.

(g) Function: The device of this invention opens the drain port (7) in K water during exhaust (Fig. 1).
) When the pipe (2) is connected to the pipe (2), the brim-shaped rubber stopper (5) closes the edge of the drain (7) with its own weight and water pressure, preventing water leakage. A direct odor evacuation duct passes through the mouth, through the cleaning pipe (4), the pipe (2), and the exhaust port (6) of the cylinder (1) to the outdoor exhaust fan. Twist the lever (8) using the same operation as before to flush the toilet (Figure 2), the pipe (2) will be pulled up via the chain (9), the drain port (7) will open, and the toilet will be flushed. Wash away. The exhaust port (6), which is provided on the side inside the cylinder (1), is closed on the outside surface of the upper part of the pipe (2) to cut off water intake by the exhaust fan, and to prevent the inside of the cylinder (1) and pipe (2) from being sucked in by the exhaust fan. An air layer is formed between the pipes (2), which prevents water from entering and prevents the pipe (2) from going down until the water is drained. When the drainage is finished, the pipe (2) descends under its own weight from the vertical motion guide (10) K along the Ohiflow pipe (3) and returns to the drain port (7).
) to start water supply, and at the same time, the exhaust port (6) is also opened to perform exhaustion.

(F) Effects of the Invention As explained above, this invention has the purpose of storing water in a conventional water tank (Fig. 3) and discharging water when necessary. It is easy to open and close, and odors can be removed directly from the inside of the toilet bowl to the outdoors. Therefore, the odor exhaust port closest to the odor source is created, and the odor is removed before it diffuses into the toilet, resulting in a completely odorless toilet.

The air convection inside the toilet is free from problems such as odor and ventilation, and air conditioning equipment can be installed.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a conventional water supply tank, FIG. 2 is a partially sectional perspective view of a conventional water tank.

Claims (1)

[Claims] Inside the water supply tank for a flush toilet, when water is flushed (FIG. 2), the drain port (7) is opened and the exhaust port (6) is closed. When exhausting (Fig. 1), the exhaust port (6) opens and the exhaust port (6)
Connect the drain port (7) with the drain port (7) to stop the drainage, and remove the cleaning pipe (4).
A method and device for removing odors, in which the toilet bowl doubles as a drainage and exhaust passage, and the water outlet of the toilet bowl also serves as an odor intake port.